PSI - Issue 13
Weijian Wu et al. / Procedia Structural Integrity 13 (2018) 2017–2023 W.Wu etc. / Structural Integrity Procedia 00 (2018) 000–000
2020
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Fig. 4. Shape of the crack in FEM
The remaining element in sub model B is C3D10H. Young’s modulus of steel, E s , is 210 GPa with ν s 0.3. For the hyperealasitc rubber material, the C 10 and C 20 are 0.4613 MPa and 0.0175 MPa, repectively. D 1 and D 2 are 2 . 5 × 10 − 5 MPa − 1 and 2 . 0 × 10 − 5 MPa − 1 (12). 3. Validation of the uncracked model As mentioned before, the model is built following the testing specimen in the reference (11). One of the tested joint, the north side of Sti ff ener 7, is selected for the analysis in this paper. A comparison of the measured stress ranges (mutiply the measured strain range with E s ) and FE calculation is shown in Fig. 5. The measured stress ranges are compared with the calculated ones which shows good agreement in both the top and bottom of the deck plate.
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Stress range [MPa] measured values
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measured values
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FE calculation
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20 (c) bottom of the deck, transvers direction Fig. 5. Comparison of the stress distribution in testing and FE calculation 30 40 50
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